Patent US5456129A successfully refreshed from Google Patents.
US5456129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil supply apparatus for hydraulically operated vehicular transmission
Assignee: Honda Motor Co Ltd
•
Filing: 1994-06-27
•
Granted: 1995-10-10
•
Expires: 2014-06-27
Abstract
Abstract A lubricating oil supply apparatus for a hydraulically operated vehicular transmission has a lubricating oil passage for supplying oil discharged from a discharge port of a pressure control valve which is provided in a hydraulic control circuit of the transmission to lubricating portions thereof as lubricating oil. The lubricating portions are divided into a plurality of groups depending on a change in a required amount of lubricating oil due to a temperature of the transmission. The lubricating oil passage is branched into a plurality of branches corresponding to the groups. The lubricating oil supply apparatus has a choke type of throttle which is disposed in at least one of the branches of the lubricating oil passage.
Inventors
- 👤 Toshiaki Tane
- 👤 Yoshikazu Nemoto
- 👤 Atsuhiro Sakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:38
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/048; F16H57/0493; F16H41/00; F16H41/24; F16H41/30; F16H57/02; F16H57/025; F16H57/0434; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19991
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
121 words
A lubricating oil supply apparatus for a hydraulically operated vehicular transmission, said apparatus having a lubricating oil passage for supplying oil discharged from an oil discharge port of a pressure control valve which is provided in a hydraulic control circuit of said transmission, to lubricating portions thereof as lubricating oil, wherein said lubricating portions are divided into a plurality of groups depending on a change in a required amount of lubricating oil due to a temperature of said transmission, wherein said lubricating oil passage is branched into a plurality of branches corresponding to said groups, and wherein said apparatus comprises thermosensitive type of flow control means which is disposed in at least one of said branches of said lubricating oil passage.
Claim 2
Dependent Claim
121 words
A lubricating oil supply apparatus for a hydraulically operated vehicular transmission, said apparatus having a lubricating oil passage for supplying oil discharged from an oil discharge port of a pressure control valve which is provided in a hydraulic control circuit of said transmission, to lubricating portions thereof as lubricating oil, wherein said lubricating portions are divided into a plurality of groups depending on a change in a required amount of lubricating oil due to a temperature of said transmission, wherein said lubricating oil passage is branched into a plurality of branches corresponding to said groups, and wherein said apparatus comprises thermosensitive type of flow control means which is disposed in at least one of said branches of said lubricating oil passage.
Claim 3
Dependent Claim
29 words
A lubricating oil supply apparatus according to claim 1, wherein said lubricating portions are divided into those for low-speed transmission train side and those for high-speed transmission train side.
Claim 4
Dependent Claim
34 words
A lubricating oil supply apparatus according to claim 2, wherein said flow control means is disposed in a lubricating oil passage which is branched to said lubricating portions for the low-speed transmission train side.
Claim 5
Dependent Claim
27 words
A lubricating oil supply apparatus according to any one of claims 1 through 3, wherein said flow control means is constructed by a choke type of throttle.
Claim 6
Dependent Claim
35 words
A lubricating oil supply apparatus according to claim 4, further comprising a relief valve which is disposed in said lubricating oil pressure on an upstream side of portion where said lubricating oil passage is branched.
Claim 7
Dependent Claim
32 words
A lubricating oil supply apparatus according to claim 5, wherein said pressure control valve is a regulator valve which regulates a pressure of oil from an oil source to a constant pressure.
References Cited (Backward Citations)
US4526054A
Cited
JPS6069362A
Cited
US4736819A
Cited
US5222418A
Cited
US5372213A
Cited
US5347886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |